hindahl



1927. D. HINDAHL DUMP CAR CONSTRUCTION Original Filed May 5. 1922 2Sheets-Sheet 1 1 27 1,625,998 9 D. HINDAHL DUMP cm cons'rnucnou OriginalFiled May a. 1922 2 sheets-Sheet 2 Patented Apr. 26, 1927.

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DAVID HINDAHL, OF CHICAGO, ILLINOIS, ASSIGNOR TO R'DDGER BALLAST CARCOM- PANY, OF CHICAGO, 11111111101553 A CORPORATION OF MAINE.

DUMP-CAR CONSTRUCTION.

Application filed May 3, 1922, Serial The present invention relates todump car construction.

An object of the present invention is to provide dump car constructionwhich will he sturdy and which will be selt-clcaningx A further objectis to provide dump car construction adapted for center duu'iping or sidedumping in which there is small likelihood for interference between theparts oi? the mechanism for accomplishing said two operations.

A further object is to provide a dump car construction having a sturdycenter sill which will not interfere with the complete dumping of thecar.

A further object is to provide dump car construction having doors forcenter dumping, said doors being adaptable also for side dumpingr partsbeing so arranged that there is very little tendency for material withinthe car to lodge within said parts to interfere with their properoperation.

Further objects will appear as the descrip tion proceeds.

Referring to the drawings- Figure 1 is a cross sectional view takenalong the plane of the line 1-1 oi Figure 9:

Figure 2 is a view in side elevation of part of the railway dump car ofthe con truction ilustrated in Figure 1;

Figures 3, i, 5, 6 and 7 are details of con struction.

The numeral 10 indicates a railway dump car which may have the centerline indicated by the numerals 11-11. Said car is pro vidcd with themiddle dump portion 12 and the end fiat portions 13-43 of which only oneis indicated in Figure 2. The car is provided with the side plates liit, which may be st-ifi'ened by the vertically placed braces 15- 15. Thecar is strengthened longitudinally by means of the center sill 16, saidcenter sill being a "fabricated tructure which will be referred to morein detail hereinafter. Arranged transversely of the car at a pluralityof points along the dumping portion of said car are the cross hearers1'Z-17, which cross bearers may be located in proximity to the braces1515. Said cross bearers 1717 may be riveted to the center sill at thecenter of the car and to the No 558,236. Renewed July 30, 1924.

side plates at the side of the car. The bottom of the dumping portion ofthe car may be made up as follows: Two inwardly sloping floor members1818 are provided which slope inwardl from the sides of the car.Attached to the center sill are the two outwardly sloping floor members19-19. Cooperating with each sloping floor member 18 and thecorresponding sloping floor member 19 is the swinging dump door 20pivoted to swing about the pivot 21, said pivots 21 being locatedadjacent to the sloping floor members 1818 and being supported from thecross bearers 1'T17. Each of the dump doors comprises a closure member22 and an extension member 23, said closure member being pivoted to theextension member 23 about the pivot 24. A longitudinally extending rod25 operates certain links or other mechanism to control the two dumpdoors 20-20, having operative connection with said dump doors at pointsadjacent to the extremities of the extensions 23. Operation of thelongitudinally extending rod will control the swinging movements of thedump doors 2020 about the pivots 21-QL wl'iereby material in the car maybe dumped between the tracks upon which the car is operated. Theconstruction for preventing the closure 92 and extension member 23 fromjack-knifing downwardly under the loa d in the car will be referred tohereinaiter.

The innermost edges of the sloping floor members 18-18 are provided withangle bars 26---2(3, each having one side contacting with a floor member18 and a cross bearer 17. as will be presently described, and having itsother side projectin at right angles to said floor member and rormingpart of the bottom of the car. closing the gap between said floor memberand its adjacentclosnrc member Each of said closure members may beproviiileifl with side pieces 2T---2T indicated in dotted lines inFigure 1, whereby each of said closure members forms it SCOUP.

As indicated above, each of the closure members 22 may have a pivotalmovement about the pivot 24- an axis by which movement side dumping maybe accomplished. Said closure 22 is controlled for side dumping by thechain or other flexible member 28, which may be connected to the closureby means of the eye bolt 25 The other end of said chain 28 is controlledby the .longitudinally extending shaft 30, which shaft may be operatedby any prefer ed means. The pitch-line ot the chain 2E5 should passthrough the axis of pivot By reason of this construction, swinging oithe dump doors Ell-20 for center tllllllplll fll does not change therelation of the closure portion to the ii'cn'iaindor o't said dump door.lhis advantage follows as a result of the fact that regardless ol heswinging of the dump door 20 as a whole about the pivot 21, there is nochange in the holding effect of chain. 28,. inasmuch said chain.i'nerely swings with the remainder of the door about the pivot 21.. Thepositions of the two dump doors 20-20 for center dumping are illustratedin broken lines in Figure 1. The position of the right hand closuremember 532 for side dumping is indicated in dash and dot lines in Figure1.

Each of the extension members 23 ot the dump doors 20 is provided withstrengthening' means extending longitudinally of the car and indicatedas a whole by the numeral 31. Each of the dump doors is provided with astrengthening rib extending in a plane transversely of the car which ribis indicated by the numeral 32. Said. rib n cross section may be in theterm of an inverted, truncated V and is pivoted to have a swinging;movement in the manner indicated in Figures 1 and 7 in which the numeral32 indicates casting members which may be secured to cross bearers 17and which provide pivotal mounting means for an attachment piece 32"which is securely riveted to said rib Said rib is fastened to the er;-tension member 23 in the manner illustrated in Figure 3, which is asectional view taken along the line 33 of Figure 1.. Said cw:- tensionmember 28 is provided with two upturned portions 3333. to the outersides oi which the strengthening rib 32 is riveted. The sturdyconstruction prevents the jackkniliuc of closure 22 and extension member23 under load. The bottom portion oi? each of the floor members 19-19 isprovided with the strengthening bars said floor member and said bars 35being; cut away as indicated by the numeral 36 to provide a recess torthe strengthening rib 32. The wedge-shaped construction of thestrengthening bar 32. which fits into the corresponding wedgeshapedrecess 36 in the floor member 1.9, insures the wedgiug home ot' the dumpdoor after operation in spite oi distortions which may occur as a resultof stresses in service. The angle bar 9.6 may be also cut away toprovide a wedge-shaped recess to receive rib 32. By reason 01'' thetransverse recesses remenace terred to and the lit-t ng thereinto of theribs 32 the car is strengthened a dust the rackuw ains due to heavyimpacts. lily reason oi: the 1 act that the upturned portions E33-33 otthe dump door are mounted within the strcn 'thouiug rib, saidstrcngtlmning rib has a scl t-clean'no' action.

.is im ated in detail in li igurc t and 1c sloping; floor members 1S--18are notched 'o receive the cross bearers 1T-17. The coir-n .l'luormembers l8-5lt3 are braced by the angle bars 26 which are supl'iortcd bythe cross bearers 17-4.?

The center sill 16 may be fabricated from strizcturalv stool andcomprises the two side walls 237b7 which converge toward one another attheir uppermost parts as indicated in l ig'ure l. Said valls 3737 may bebraced in any preferred way to preventcrushing together under load andmay be provided at their upper converging portions with the angle bar ashaving; its apex uppermost. As noted above, the cross bearers lT- li'will be riveted to the center sill 16 and will provide a sturdyconnection be tween the center sill and the sides of the (lump car.Plaid cross bearers also provide sturdy u'iouuting members for the dumpdome of the car. iiy reason of the wedge- .pcd top of the center sillprovided by the angle bar 35-), said center sill is seltt-cleaning,whereby complete dumping may be readily el'lected.

it should be particularly noteo that the structure described provides avery sturdy construction. 'lhc sloping walls 19 with their notches sowhich receive the wedgeshaped strengthening; bars o Z-3LZ insure a veryrigid COHEll'UCQlOH. This rigidity improved by the side pieces 27-2? ofthe closure members 22 Q. 'lhc tact that the wedge-show d strcu' honingbars S2 32 :lit

within corres umdlug notches in the angle bars 2lS--2( also adds to therigidity of the struci'mrc. 'llhe structure reterred to together withthe abricatcd center sill. provides a car which has ample strength towithstand all the shocks encountered in service. l lxpresscd in otherlanguage, it may be state-d that the underlramc members of the car andthe swinging dump doors have complementary recesses and projectionswhich lit together when the doors are closed to give rigidity to the carstructure.

I heretofore (lliPllLlfiCtl the uudcrt'ramc of the ar cou'iprises theplurality oi cross bearers 1? connected to the center sill and alsoconncctcd to the side plates ot' the car in proximity to the braces orstakes 1?. As indicated in Figure 1. the door 20 is located in a planebeneath the lower cdge oi the cross bearer 17, thus ma ring it possibleto cuterthe door 2 with its closure i'uemhcr c: iuu'iuslv as indicatedin .iggurc Q beneath the cross bearers.

One embodiment of the present invention has been described in detail.Many modifications of the disclosed embodiment will occur to thoseskilled in the art. It. is intended in this patent to cover all suchmodilicatious that fall within the scope of the invention as defined bythe a ppendcd claims.

I claim:

1. A dump car comprising a pair of bottom dump doors pivoted along axesadjacent to the sides of said car, sloping floor members locatedadjacent to the center line of said car and contacting with said dmnpdoors along lines spaced from said center line, said doors havingextension members extending beyond said spaced lines, said doors beingprovided with swinging closure members pivoted adjacent to said floormembers, and flexible operating means for said closure members havingtheir pitch lines always extending through the pivotal axes of said dumpdoors.

2. A dump car including dmnp doors for either side dumping or centerdumping, each of said dump doors being of compound constructioncomprising a closure member and an extension member, said closure memberbeing swingable outwardly relative to said extension member for sidedumping, a flexible member for controlling said closure member foroutside dumping, said flexible member having its pitch line alwaysextending through the pivotal axis of its corresponding dump door.

3. A dump door comprising a closure member and an extension member, saidmembers, being pivoted together, flexible con trolling means for saidclosure member, the pitch line of said flexible means always extendingthrough the pivotal axis of said dump door.

l.-. Dump car construction having on each side of its center line a pairof outer sloping floor members converging toward one another, a secondpair of floor members, each of said outer floor members being spacedfrom one of said other floor members to pro vide an opening. a dump doorpivoted adjacent to each of said outer tloor members and each includinga closure member for one of said openings. each of said dump doorshaving an extension member extending inwardly bevond its correspondingother floor member, said closure members being pivoted adjacent to saidother :tloor members, and flexible op -rating means for said closuremembers, said flexible means having its pitch line always extendingthrough pivotal axis oi its correspomling dump door.

In dump car construction. a centcr sill. lloor members adjacent to saidcenter sill sloping downwzn'dly and (mtwardlv, floor members locatedadjacent to the sides oi, the car sloping downwardly and inwardly. andpivoted closures for connecting each pair of door members, said closureshaving wedgeshaped bracing members adapted to fit into wedge-shapedopenings in their correspond ing tloor members.

(3. dump car comprising side walls, sloping bottom members. a centersill, and cross bearer members connecting said side walls and saidcenter sill. said bottom members being notched to receive said crossbearers.

'7. A dump car comprising side walls, sloping bottom members, a centersill, and cross bearer members connecting said side walls and saidcenter sill, said bottom members being notched to receive said crossbearers, longitudinal bracing members for said bottom members, saidbracing members being rigidly connected to said cross bearer members.

8. A dump car comprising sloping bottom walls and dump doors cooperatingtherewith, said dump doors having wedgeshaped bracing members adapted tofit within wedgeshaped openings in said bottom walls whereby to wedgesaid dump doors into proper position regardless of distortions due tostresses encountered in ::c'.-' .icc.

9. Dump car construction comprising a sloping bottom wall and a swingingdump door cooperating therewith, said dump door having upturned portionsand wedge-shaped bracing means littingovcr said upturned portions, saidbracing member being adapted to fit within a corresponding recess insaid sloping bottom wall.

10. A dump car having a pair of transversely spaced dmnping openings. apair of swinging dump doors for closing said openings. said dump doorsbeing pivoted along longitudinal axes placed adjacent to the sides ofsaid car, each of said dump doors comprising a closure member and anextension member, said closure member having pivotal connection withsaid extension member for side dumping, operating means tor said dumpdoors connected to the outer ends of said extension member, each of saidclosure members and each of said extension members being provided withbracing means for pre venting jack-kniling of said dump doors underload.

ll. A dmnp tar having a pair of transversely spaced dumping openings. apair of swinging dump doors for closing said openings. said dump doorsbeing pivoted along longitudinal axes placed adjacent to the sides ofsaid car. each of said dmnp doors comprising a closure member and anextension member, said closure member having pivotal connection withsaid extension mcmbcr 'lor side dumping, operating means 'l'or said dumpdoors connected to the outer ends (it said extension members. each ofsaid closure members and each of said extension members being providedwith bracing means for preventing jac i-ltniling of said dump doorsunder load, said bracing means being wedge-shaped to conform tocorresponding recesses in the bottom portion of said car to insure theproper location of said dump do regzn'dless of distortions due tostresses encountered in service.

12. it dump car inchuling a dump door pivoted about alongitudinal axis,said dump door being of compound construction and including a closuremember and an eatension member, supporting means for said dump doorapplied. to the outer end of said closure member, said closure memberbeing pivoted to said extension member, said c1c tension member andclosure member being provided with bracing means to prevent jaclI-kniting of said door under load.

13. A dump car including a dump door pivoted about a longitudinal axis,said dump door being of compound construction and iiutluding a closuremember and an cxteir sion member, supporting means for said dump doorapplied to the outer end of said closure men'iber, said closure memberbeing pivoted to said extension member, said or;- tension member andclosure member being provided with bracing means to prevent jack-hintingof said door under load, said bracing means being wedge-shaped toconform to a corresponding recess in the bottom of said car whereby towedge said dump doors into proper position regardless of dis tortionsdue to stresses encountered in service.

let. A railway car having a bottom comprising a dump door, a hingemember therefor, said dump door including a closure member pivotallymounted thereon opposite the hinge member of the door, flexible meanscontrolling said. closure member, the pitch line of said flexible meansalways extending through the pivotal axis of said dump door.

'15. A, dump car, including a center sill having an i s-shaped apex,floor members connected with said center sill and sloping downwardly andoutwardly therefrom, sloping floor members adjacent to the sides of saidcar, the two floor members on each side of said center sill convei ringtoward one another, and a pair of swinging dump doors, each having a wedshaped reinforcing member on the upp side thereof, said wedge-shapedreinforcing members being adapted to fit into corresponding notches intheir corresponoing outwardly sloping floor members.

16. It dump car, including a center sill having an fi e-shaped apex,floor members coimected with said center sill. and sloping downwardlyand. outwardly therefrom, sloping floor members adjacent to the sides ofsaid car, the two floor members on each side of said center sillconverging toward one another, and a pair of swinging dump doors, eachhaving a wedge-shaped reinforcing member on the upper side thereof, saidwedge-shaped reinforcing members being adapted to fit into corres'ionding notches in their corresponding outwardly sloping floor members,each of said dump doors being provided. with swinging closure memberspivoted adjacent to said, outwardly sloping floor members.

ii". A dump car, including a center sill having an fi-sha 'icd apex,lloor members connected. with said center sill and sloping downwardlyand outwardly therefrom, sl0ping floor members adjacent to the sides ofsaid car, the two iloor members on each side of said center sillconverging toward one another, and a pair of swinging dump doors, eachhaving a wedge-shaped reinforcing member on the upper side thereof, saidwedge-shaped reinforcing members being adapted to fit into correspondingnotches in their corresponding outwardly sloping floor members, each ofsaid dump doors being provided with swinging closure members pivotedadjacent to said outwardly sloping floor mei'nbers, said closure membershaving side pieces for strengthening purposes and to form a scoop.

18. A, dump car having a center sill and a pair of floor members on theopposite sides of said center sill, the members of each pair of floormembers converging toward one an other, and a dump door pivoted adjacentto one of said floor members and co-operating with the other of saidfloor members to form a seal, said dump door being provided with awedge-shaped reinforcing member on its upper side adapted to fit into acorresponding wedge-shapcd notch. in a corresponding sloping floormember.

19. A car of the class described having undertrame members, a bottom forsaid car con'iprising swinging door members, transverse recesses uponone of the members and corresponding projections upon the other membersengaging the recessed members to give rigidity to the car structure.

20. A car of the class described having underframe members, a bottomcomprising door members, transverse recesses formed in the underframemembers and corresponding projections upon the door members swinginginto engagement with said recessed members when the doors are closed.

21. A car of the class described. having underfij'ame members, a bottomcomprising door members, transverse recesses formed in the miderframcmembers and corresponding projections upon the door members swinginginto engagement with the wedge-shaped re ccssed members when the doorsare closed.

A car of the class described having an. nnderfraine coi'i'iprising acenter sill and cross sills extending from the center sill toward theside of the car, dumping doors located under said cross sills andextending continuously beneath said cross sills, said dumping doorsbeing arranged to discharge the car lading either to the center or tothe side of the track and means for operating said doors.

A car of the class described having an underframe comprising a centersill and cross members, a bottom for said car comprising a swinging doorframe hinged adjacent to the car side, and a door within said framehinged adjacent to the center sill, said door frame and its doorextending continuously beneath the cross members of the under-frame.

24. A car of the class described having an underirame comprising acenter sill and cross members, a bottom comprising swinging door frameshinged adjacent to the car sides, and a door within each of said frameshinged adjacent to the center sill, said door frames and their doorsextending continuously beneath the cross members of the underitrame,means for simultaneously operating said door frames to drop downwardlyfor center dun'iping, and independent means for operating each doorwithin said frames for side dumpin 25. A car of the class describedhaving an undert'rame comprising a center sill and sides, cross membersextending from the center sill towards the sides of the car, a bottomfor said car comprising a swinging dumping member located below thecross members, said dumping member extending continuously beneath saidcross members, said under frame and said dumping member havingcorresponding recesses and projections which fit together when saiddumping member is in closed position.

Signed at- Chicago, Illinois, this 6th day of April, 1922.

DAVID I-IINDAHL.

